Improvement in furniture-casters



L. F. CERF.

FURNITURE-EASTER. No. 170,156. Patented Nov.23,1875.

7/2712 8656.52 jiweizzoit' I" a Arm/m NITED STATES PATENT QFFICE.

L. FREDERIG CERF, OF NEW YORK, N. Y.

IMPROVEMENT IN FUR NlTU RE-CASTERS.

Specification forming part of Letters Patent No. 170,156, dated November23, 1875; application filed April 28, 1875. v

To all whom it may concern Be it known that I, L. FREDERIO CERF, acitizen of France, at present residing in New York, N. Y., have inventedcertain new and useful Improvements in' Casters; and I do hereby declarethe following to be afull, clear, and exact description of the same,reference being had to the annexed drawing, making part of thisspecification, in which- Figure l is a front elevation; Fig. 2, avertical section through one form of the device 5 Fig. 3, a verticalsection through another thereof; and Figs. 4:, 5, 6, and 7 are detachedparts and sections of the two forms of my improved caster.

The object of thisinvention is to strengthen the caster; and it consistsof an enlarged conical bearing made around the foot of the pivot orspindle for thesocket, having a conical recess to ride on, in additionto the bearing around the upper end of the spindle, all as hereinaftermore fully described.

In Fig. 2 of the drawing the enlarged conical bearing is shown by a,made on the lower part of the spindle, and fitted in conical recess a ofthe socket, the base or shoulder resting upon the cross-head b of thecaster-fgarne, in which the pivot or spindle is riveted? In Fig. 3 ofthe drawing, the enlarg'dbear ing to is made upon the cross-head, thespindle passing through it and riveting in the crosshead the same asbefore, the full size of the pivot or spindle being retained, however,down to the bottom of the bearing to retain its strength, the extremeend only of the spindle being-reduced a distance equal to or less thanthe thickness of the cross-head.

Fig. 4 shows the pivot or spindle used in Fig. 2; and Fig. 5 shows thepivot or spindle of Fig. 3;and Figs. 6 and 7 sections of the cross-headsof Figs. 2 and 3, respectively.

By this improvement the pivot or spindle is rendered less liable tobreak, while at the same time the cross-head of the caster-frame

